Lasers

The laser should desappear when colliding with a wall/object If it collides with an enemy it should trigger a function

Finally, it should disappear after a certain amount of time That way, we cannot have infinite laser.

For that we are using a signal

func _on_body_entered(body):
	if "hit" in body:
		body.hit()
	queue_free()

The queue_free() method will remove the node from the scene. And if the body is an enemy (have a "hit" method), we will call the hit() method.

The if statement here can check a method or a property.

To have a timer, we can use the timeout signal with a Timer node.

func _ready():
	$Timer.start()

func _on_timer_timeout():
	queue_free()